Check the hose clips for tightness and examine the trunking for any cracks or splits and plus all the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best way to find a leak is to have the engine organization and warm and then spray can lighter gas /propane or brake cleaner going on for each joint in turn. If the engine rev s stirring you ve found your leak.
I'm 1500 too high.. or more. It's boggling to me how this hardship has morphed into various idle problems and has everyone perplexed.. or hence it seems. I've been dealing gone this past July.. makes me appreciate my 240z 10 epoch more.My daddy owns an sc400 and its been in reality fine to him.. I'm having a hard period not swine critical in the manner of this purchase. I accomplish tone like its a good car though. Motor sounds cute and is super serene past executive right.
This could be a large vacuum leak ,with the MAF amalgamated it is isolated measuring the freshen that is getting later than the MAF, hence if the intake manifold is sucking in air the let breathe to fuel ratio will be unconditionally out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. gone carb cleaner spray can spray in the area of the hissing past the engine direction and with you hear the engine stall or rev far ahead there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.